Adrenal glands decide for you if it is time to fight or run and they release the “stress” hormone, adrenaline. Adrenaline passes signals to the brain about any potential dangers, and then the brain helps our body to prepare for reacting to or escaping from it.

Adrenal glands release some other important hormones, but in most cases it can make too much of them. If it produces too many androgenic steroids, it can lead to high male characteristics, like baldness and extensive facial hair for both women and men.